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193912 (2001 QT255)
Classification: Main-belt Asteroid          SPK-ID: 2193912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018437457362958 4.0169e-08  
a 2.28675096026038 1.2839e-08 au
q 1.825184580875353 8.9613e-08 au
i 6.715549525457352 7.0541e-06 deg
node 197.7001870021189 3.4877e-05 deg
peri 81.9047705861479 3.9741e-05 deg
M 192.9178092928827 2.229e-05 deg
tp 2459586.711578619011
(2022-Jan-07.21157862)
8.1131e-05 TDB
period 1263.067999106947
3.46
1.0637e-05
2.912e-08
d
yr
n .2850202841450645 2.4004e-09 deg/d
Q 2.748317339645406 1.5431e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      10253 days (28.07 yr)  
   first obs. used      1991-11-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 15:38:07  

Additional Information
 Earth MOID = .823969 au 
 Jupiter MOID = 2.4112 au 
 T_jup = 3.565 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456845.5 (2014-Jul-07.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2018879224462754 4.0098e-08  
q 1.824526732930947 8.9428e-08 au
tp 2457061.480983691248
(2015-Feb-07.98098369)
7.0275e-05 TDB
node 197.7204905297395 3.4866e-05 deg
peri 82.01422054811358 3.9749e-05 deg
i 6.716691963654402 7.0564e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      10253 days (28.07 yr)  
   first obs. used      1991-11-02  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58856  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 15:38:07  

Additional Information
 Jupiter MOID = 2.4112 au 
 T_jup = 3.565 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.60786501165034E-15 -3.564271858061715E-15 5.488931876804831E-13 7.557879664553507E-15 7.000905986610352E-14 8.889347529526622E-16
q -3.564271858061715E-15 7.997416363498267E-15 -9.697306917020407E-13 -1.616105199699209E-14 -9.567493858972669E-14 -1.074643941543983E-15
tp 5.488931876804831E-13 -9.697306917020407E-13 4.938565813045168E-9 1.542410397712695E-11 1.341575324647358E-9 2.30001706677936E-12
node 7.557879664553507E-15 -1.616105199699209E-14 1.542410397712695E-11 1.215631829412689E-9 -1.202640818316465E-9 -1.336059321126908E-11
peri 7.000905986610352E-14 -9.567493858972669E-14 1.341575324647358E-9 -1.202640818316465E-9 1.579964134582827E-9 1.388881316440002E-11
i 8.889347529526622E-16 -1.074643941543983E-15 2.30001706677936E-12 -1.336059321126908E-11 1.388881316440002E-11 4.979247375697988E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO454348  

193912 (2001 QT255)          Discovered 2001-Aug-25 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2110-Dec-05 22:15 00:01 Iris 0.0499988980959675 0.0499944919616297 0.0500033114318612 7.82645571874103 7.82645570405016 2492060.427389491 1.03200571063596 1057.93355780949 89.0809073848295 79.0083728505484 82423.539300333 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 15:38:10 2019-Dec-04 15:38
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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